(DES-THR5)-GLUCAGON H-HIS-SER-GLN-GLY-PHE-THR-SER-ASP-TYR-SER-LYS-TYR-LEU-ASP-SER-ARG-ARG-ALA-GLN-ASP-PHE-VAL-GLN-TRP-LEU-MET-ASN-THR-OH HIS-SER-GLN-GLY-PHE-THR-SER-ASP-TYR-SER-LYS-TYR-LEU-ASP-SER-ARG-ARG-ALA-GLN-ASP-PHE-VAL-GLN-TRP-LEU-MET-ASN-THR L-Threonine, L-histidyl-L-seryl-L-glutaminylglycyl-L-phenylalanyl-L-threonyl-L-seryl-L-α-aspartyl-L-tyrosyl-L-seryl-L-lysyl-L-tyrosyl-L-leucyl-L-α-aspartyl-L-seryl-L-arginyl-L-arginyl-L-alanyl-L-glutaminyl-L-α-aspartyl-L-phenylalanyl-L-valyl-L-glutaminyl-L-tryptophyl-L-leucyl-L-methionyl-L-asparagin... Glucagon Impurity 9 Tetratrifluoroacetate Des-Thr 5 Glucagon) (Des-Thr?)-Glucagon